Precision Twist Drill 6000562 Cobalt Jobber Drill 8.40mm

Product Description

The PRECISION TWIST DRILL 6000562 is a cobalt high-speed steel jobber-length drill bit designed for production and heavy-duty drilling in steel and other demanding workpiece materials. Built to DIN 338 and ANSI standards, it features a 135-degree split point with web thinning for self-centering starts and reduced thrust. The straw oxide finish provides light lubricity and corrosion resistance during storage. At 8.40 mm (0.3307 inches) in diameter with a 117.00 mm (4.6094 inches) overall length and 75.00 mm (2.9531 inches) of flute length, this bit suits general-purpose through-hole drilling in a standard drill press, CNC drill, or hand drill application.

This jobber drill is sized for metalworking applications where steel, cast iron, aluminum, non-ferrous metals, and specialty alloys are the primary workpiece materials, consistent with material codes P, M, K, N, and S. The straight cylindrical shank at 8.40 mm diameter fits standard drill chucks without an adapter. The regular spiral flute geometry, 9xD flute-to-diameter ratio, and two-flute configuration promote chip evacuation in through-drilling operations typical of fabrication shops, machine shops, and maintenance environments.

Key Features

• Cobalt steel construction rated heavy-duty for work-hardening steels and abrasive alloys
• 135-degree standard split point with web thinning reduces walking and lowers feed force at drill start
• Straw oxide finish aids lubricity and resists surface corrosion during storage and use
• Regular spiral flute with tapered web promotes consistent chip flow and core strength
• DIN 338 and ANSI specification compliance ensures dimensional interchangeability
• Straight cylindrical shank fits standard three-jaw drill chucks without reduction sleeves

Compatibility

Designed as an OEM-specification replacement or direct-application jobber drill for general-purpose metalworking. Fits any standard drill chuck accepting an 8.40 mm straight shank. No coolant-through capability; suited for dry or externally lubricated drilling setups only.

Installation Notes

Installation and use of this drill bit is performed by machinists, tool and die technicians, or qualified maintenance tradespeople. Secure the shank fully in the chuck and verify concentricity before starting a cut. Always wear eye protection and appropriate PPE when drilling metal. Do not exceed the recommended feed and speed parameters for the workpiece material and machine type in use.